| Benjamin Rice Lacy | |
| Order: | 19th |
| Office: | North Carolina State Treasurer |
| Term Start: | January 15, 1901 |
| Term End: | February 21, 1929 |
| Governor: | Charles Brantley Aycock Robert Broadnax Glenn William Walton Kitchin Locke Craig Thomas Walter Bickett Cameron A. Morrison Angus Wilton McLean Oliver Max Gardner |
| Predecessor: | William H. Worth |
| Successor: | Nathan O'Berry |
| Birth Date: | June 19, 1854 |
| Birth Place: | Raleigh, Wake County, North Carolina |
| Death Date: | February 21, 1929 (aged 74) |
| Party: | Democratic Party |
| Profession: | Locomotive engineer, public servant |
| Spouse: | Mary Burwell |
Benjamin Rice Lacy (June 19, 1854 – February 21, 1929) served as North Carolina Commissioner of Labor from 1893–1897 and 1899–1901, and as North Carolina State Treasurer from 1901–1929. Lacy died one month after taking office for his eighth term as Treasurer.
Lacy's father, Rev. Drury Lacy II, was the president of Davidson College and his grandfather, Drury Lacy, was president of Hampden–Sydney College.